Tobacco pouch



R. LOCHHEAD. TOBACCO POUCH.

APPLICATION FILED JUNE 23' I92!- Patented Mar. 21, 1922.

ATTORNEYS UNITED STATES PATENT OFFICE.

ROBERT LOCHHEAD, 0F ANDOVER, MASSACHUSETTS, ASSIGNOR T0 TYER RUBBER COMPANY, OF ANDOVER, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

TOBACCO POUCH.

Specification of Letters Patent.

Patented Mar. 21, 1922.

Application filed June 23, 1921. Serial No. 479,756.

I '0 (IZZ 71 cm 2' 2? may concern Be it known that 1, ROBERT LOGI-IHEAD, a citizen of the United States, residing at Andover, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Tobacco Pouches, of which the following is a specification.

My invention is a new method of producing a soft rubber tobacco pouch and the pouch produced by this new method.

My new pouch is formed from one piece of semi-cured rubber, which is first made up into a tube preferably seamless, and thereafter, by a succession of operations,is formed into a pouch.

In the drawings,

Figure l is a flattened section from a tube;

Figure 2 is the same after preliminary trimming;

Figure 3 is an edge new of Figure 2, partly in section, on line 33 of Figure 2; Figure l is the tube of. Figure 3, with a form adjusted within the closed end; and Figure 5 shows the upper or neck part twisted preparatory to being vulcanized to set permanently.

The tube A is made of a diameter suitable for the size of the pouch it is desired to produce. A suitable width, when flattened, as in Figures 1, 2 and 3, is three inches.

T he tube is made up of rubber only semicured and from this tube a length, say five inches, is cut off and, when flattened, thls length will present substantially the appearance and proportions shown in Figure l. One end of this tube section is then trimmed to curved outline, as shown at a, in Figure 2 and the edges of the curve are coated with rubber cement, and are then brought into butted relationship and caused to unite, as shown in Figure A metal forming block, of asize equal to the size ofthetobacco chamber of the finished pouch being placed in the closed end of the tube as indicated at 1s flat and curve of the tobacco chamber walls and hi 6, in Figure 4, the portion of the tube proecting above the forming block is creased, that 1s, indented, longitudinally of the tube, from within, as indicated in dotted lines in Figure 4, to cause the neck of the tube to fold upon the creases. The neck is then rotated a half turn, drawing in the mid-section of the neck and drawing the lower end of the neck over the upper surface of the forming block, as shown in Figure 5, and the neck is then subjected to suitable heat to sects the flat bottom of the tobacco 'cham her. The cost of production is greatly reduced and the resulting pouch is stronger and more durable.

I claim:

1. The method of forming a tobacco pouch above described, which consists in cutting a section from ing one end of the section to a curvilinear form, uniting the curved edges and forming the chamber over a suitable shaping block by twisting and flattening the open end of the tube and setting the open end in position by vulcanizing.

2. The unitary tobacco pouch above dcscribed, formed of a tubular section, one end closed by a seam crossing the bottom or the pouch to form a tobacco chamber, the other end of the tube normally closing by revolving with regard to the chamber.

Signed at Andover, Massachusetts, this 16th day of June, 1921.

ROBERT LOCHHEAD.

a tube of soft rubber, shap- 

